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We report a 65-year-old male with histopathologically proven prostate cancer and multiple pelvic node metastases using a robotic-assisted radical prostatectomy procedure plus extended pelvic lymph node dissection. Positron emission tomography (PET) scan findings demonstrated a moderate accumulation of 11C-choline in a metastatic left obturator node sized 8 × 8 mm, though only a faint uptake of fluorodeoxyglucose (FDG) was noted. 11C-choline PET/computed tomography (CT) may be useful for the diagnosis of a tiny metastatic lymph node not demonstrated by CT, magnetic resonance imaging, or FDG-PET/CT and to determine the need for an extended pelvic lymph node dissection.

In 2008, a 65-year-old woman was referred to our department because of a right renal tumor detected by computed tomography (CT) that was associated with macroscopic hematuria. She underwent right hemicolectomy for ascending colon cancer in 2003, and right lower lobectomy for lung metastasis of colon cancer in 2004. CT, magnetic resonance imaging, fluorodeoxyglucose positron emission tomographycomputed tomography and bone scintigraphy did not indicate any other metastatic lesion except the right renal mass ; therefore, open right nephrectomy was performed. Results of the histopathologic examination demonstrated renal metastasis of colon cancer. Although administration of chemotherapy was continued, the patient died of multiple metastases 8 months after the right nephrectomy.

A 70-year-old man visited a urological clinic on May 2008 complaining of dysuria and nocturia since 2 years prior. He was diagnosed as having gross benign prostatic hypertrophy, and was referred to a nearby hospital for transurethral resection of prostate (TURP). During TURP, a papillary tumor was found in the prostatic urethra on the left side and a biopsy was performed. A pathological examination revealed urothelial carcinoma G3. Cystoprostatectomy was planned, but the patient refused the procedure. Therefore, he underwent three courses of MVAC intra-arterial chemotherapy (methotrexate, vinblastin, doxorubicin, cisplatinum) at our hospital. After chemotherapy, no tumor was found in the prostatic urethra and a pathological report of repeat TUR showed no tumor. Currently, the patient is alive and there has been no evidence of recurrence for 1 year and 10 month.

We reported a rare case of intrascrotal lymphangioma in an adult. A 31-year-old man visited a urological clinic with a chief complaint of left scrotal swelling since a few days ago, and was pointed out to have a left intrascrotal cystic mass. The patient was sent to our hospital for further examination in 23 April 2008. The left scrotal mass was palpated elastic hard below the left testis and its surface was irregular. Light transillumination test showed positive. Ultrasonography revealed a cystic mass 7.0×4.4×4.5 cm with multiseptate accumulation at the lower pole of the left testis. Magnetic resonance imaging showed low intensity by T1WI and high intensity by T2WI, suggesting a protein-rich component. We suspected left intrascrotal lymphangioma and extirpated the scrotal mass under lumbar anesthesia. Pathological examination demonstrated lymphangioma. The patient had no evidence of recurrence after 1 year.

In 2008, a 65-year-old woman was referred to our department because of a right renal tumor detected by computed tomography (CT) that was associated with macroscopic hematuria. She underwent right hemicolectomy for ascending colon cancer in 2003, and right lower lobectomy for lung metastasis of colon cancer in 2004. CT, magnetic resonance imaging, fluorodeoxyglucose positron emission tomographycomputed tomography and bone scintigraphy did not indicate any other metastatic lesion except the right renal mass ; therefore, open right nephrectomy was performed. Results of the histopathologic examination demonstrated renal metastasis of colon cancer. Although administration of chemotherapy was continued, the patient died of multiple metastases 8 months after the right nephrectomy.

A 70-year-old man visited a urological clinic on May 2008 complaining of dysuria and nocturia since 2 years prior. He was diagnosed as having gross benign prostatic hypertrophy, and was referred to a nearby hospital for transurethral resection of prostate (TURP). During TURP, a papillary tumor was found in the prostatic urethra on the left side and a biopsy was performed. A pathological examination revealed urothelial carcinoma G3. Cystoprostatectomy was planned, but the patient refused the procedure. Therefore, he underwent three courses of MVAC intra-arterial chemotherapy (methotrexate, vinblastin, doxorubicin, cisplatinum) at our hospital. After chemotherapy, no tumor was found in the prostatic urethra and a pathological report of repeat TUR showed no tumor. Currently, the patient is alive and there has been no evidence of recurrence for 1 year and 10 month.

We reported a rare case of intrascrotal lymphangioma in an adult. A 31-year-old man visited a urological clinic with a chief complaint of left scrotal swelling since a few days ago, and was pointed out to have a left intrascrotal cystic mass. The patient was sent to our hospital for further examination in 23 April 2008. The left scrotal mass was palpated elastic hard below the left testis and its surface was irregular. Light transillumination test showed positive. Ultrasonography revealed a cystic mass 7.0×4.4×4.5 cm with multiseptate accumulation at the lower pole of the left testis. Magnetic resonance imaging showed low intensity by T1WI and high intensity by T2WI, suggesting a protein-rich component. We suspected left intrascrotal lymphangioma and extirpated the scrotal mass under lumbar anesthesia. Pathological examination demonstrated lymphangioma. The patient had no evidence of recurrence after 1 year.